Knot and 3/4



R. soNNBERGi-:R

KNOT AND 3/4 Fild Sept. 4, 1952 June 16, 1953 In vez? for Patented June16, 1953 KNOT AND i Rudolph Sonnberger, Chicago, Ill., assignor to R. J.Ederer Company, Chicago, Ill., a corporatlon of Illinois ApplicationSeptember 4, 1952, Serial No. 307,792

7 Claims. (Cl. 87-12) `V'My invention resides in the field of nets, suchas the nets used in fishing and trapping, tennis, badminton, volley balland other outdoor games. The knots used in these kinds of nets varyquite widely depending upon the type of use to be made of the net, thematerial from which the strands of the net are made, the conditionsunder which the net will be used, the strength necessary in the netnecessitated by its application, and vother factors. Various knots foundsuitable for one type of use are totally inappropriate in other fieldsin that they fail to stand up to the ,requirements of that particularactivity.

- Possibly the most important factor in nets involving their over-allutility, other than the material from which the strands of the netV aremade, is the knots used, in that ineffective or inappropriate knots canrender the net inefficient if not useless and possibly dangerous.

With the advent of new and improved mal--l terials that can be used linthe strands of the net, the conventional knots are on occasion.inappropriate in that efiiciency of a knot is ofttimes directlypredicated upon the particular material being'used.

Therefore, the primary object of my invention is a new and improved knotto be used in nets of all types and description wherein the knot iseconomical from the standpoint of the cost of the machinery necessary to.produce the same.

A further object of my invention is a new and improved knot to be usedto secure two strands of lines or twine together so as to acquire a firmand tight connection between the two, regardless of whether thelineis'made of conventional material, such as cotton or linen or, one ofthe'- new materials, such as nylon.

Other objects will appear from timev to time` in the ensuingspecification 'and drawings, in

which:

Figure l is a plan view of a section of a net employing my new knot; andv Figure 2 is a detail view of my new knot showing one ofthese knots inan expanded or loosened condition.

In Figure l, a section of net N is shown as composed of a plurality ofstrands vertically disposed, such as denoted by reference numerals l0,[2, |4, |0, l8 and 20. These strands are woven into a net, -byconventional net-making machines, so as to .be knotted together atequally spaced intervals, such as by a knot K, so that a regularsymmetric pattern is formed from the strands to produce an evenwell-balanced net. Any one of a large number of knots can be used toconnect the various strands together, and I have invented a knotforthispurpose which is far more efficient than conventional knots inextensive use at the present time.

, One of my new knots is shown in Figure 2, and represents theconnection of strands |8 and 20. Strand 20 has been formed into a loopilwhich is acquired by laying one of its legs a over the other leg b whichreverses upon itself so that the legs a and b leading away from the loopZ in the same manner that they would have been if the loop had not beenformed. By over-looping the legs, the loop is provided withunintertwined sub-loop s.

Strand l8 is formed in a loop t whichhas a' strap portion r residingbetween the legs a and b of the strand 20. Leading away from the strapportion r` area pair of legs c and d, the leg d extending up through thesub-loop s in strand 20, as shown in Figure 2. The legs c and d cross toform a loop t in the strand, the cross occurring that the legs a and bof strand 20 approach the loop t .in strand 18 from opposite sides andcross one :another while passing through said loop. The leg a of strandIB which lies on top of thef leg bA which first crosses outside of theloop t; must also lie on top of the leg b at the second;v

crossing within loop t.

While I have described other cross, a leg leading away to the upperleft,

and such, it should be understood that these` terms are purely relativeand are variable depending upon how the knot is orientated and they havebeen only for purposes of description and illustration in Figure 2. V

I have found that this particular type of knot is extremely effectivewhen used in combination with 'threads or strands of nylon. When nylon'was first used in nets of various types, it proved,

not satisfactory' in that the knots conventionally used with'othermaterials would not hold nylon,

' and for several years, the production of nets of nylon was hindereddue to the fact that the 2knots used would not form a sufficiently tightconnection.

The explanation for this can probthe legs, strand and loop'by relativeterms, such as, one leg residing' o n top ofthe other, one cross beingabove the ably be derlved from the inherent characteristics of nylonmaterial when formed in the threads of nets, but for purposes of myinvention, the explanation of the slipping phenomena of nylon isunimportant.

When I state that this new and improved knot is particularly efiicientwhen used with nylon, I do not wish to be restricted to this particularmaterial in that my new and improved knot has proven to be extrernelyefiicient when used with materials that have been employed in net-makingfor years, such as linen, cotton and the like.

While I have illustrated and described one form of my invention, itshould be understood that I do not wish to be restricted to theparticular embodiment shown and described in that my invention issusoeptible of numerous changes and modifications without departing fromits essentialtheme, and the hereinabove description and disclosureshould be interpreted as only illustrative or diagrammatic of myinvention eSSential characteristics and should not be interpreted to re-Strict the Same except as by the appended claims.

I claini:

1. A net formed from a series of strands knotted together at intervals,each knot being formed from a m'st and second strand, a loop beingformed in the first strand with a pair of legs leading away therefrom, aloop being formed in the Second strand and residing over only one of thelegs leading away from the loop in the first strand, Said loop in thesecond strand having a pair of legs leading away therefrom, said legsextending through the loop formed in the first strand, the Second strandhaving a sub-loop formed by passing the legs of the first loop acrossone another.

2. A net formed from la series of strands knotted together at intervals,each knot being formed from a first and second strand, a loop beingformed in the first strand with a pair of legs leading away therefrom, aloop being formed in the second strand and residing over only one of thelegs leading away from the loop in the first strand, said loop in thesecond strand having a pair of legs leading away therefrom, said legsextending through the loop formed in the first strand, the second strandhaving a sub-loop formed by passing the legs of the first loop acrossone another, the Second cross of the legs that form the sub-loopresiding within the loops in the first strand, the strands being made ofnylon.

3. A net formed from a series of strands knotted together at intervals,each knot being formed from a first and second strand, said first strandhaving a loop and a sub-loop therein with a pair of legs leading awayfrom the sub-loop, a Strap portion in the second strand with a pair oflegs leading away therefrom and crossing each other to form a loop, saidStrap portion residing between the legs leading away from the sub-loopin the first strand, one of the legs leading away from the Strap portionin the second strand passing through the loop formed in the firststrand, and the other of the legs leading away from the Strap portion inthe second strand paSSing through the sub-loop.

4. A net formed from a series of strands knotted together at intervals,each knot being formed from a first and Second strand, said first strandhaving a loop` and a sub-loop therein with a pair of legs leading awayfrom the Sub-loop, a Strap portion in the second strand With a pair oflegs leading away therefrom and crossing each other to form a loop, saidStrap portion residing between the legs leading away from the Sub-loopin the first strand, one of the legs leading away from the Strap portionin the Second strand passing through the loop formed in the firststrand, and the other of the legs leading away from the Strap portion inthe Second strand paSSing through the Sub-loop, the Said one leg in theSecond strand passing on the opposite Side of the said other leg in thesecond strand from the loop in the first strand.

A net formed from a series of strands knotted together at intervals,each knot being formed from a first and second strand, Said first strandhaving a loop and a sub-loop therein with a pair of legs 'leading' awayfrom the Sub-loop, a Strap portion in the Second strand with a pair oflegs leading away therefrom and crossing each other vtjo form a loop,Said Strap portion residing between the legs leading away from theSub-loop in the first strand, one leg leading away from the Strapportion in the Second strand passing through the lcopformed in the firststrand, and the other leg leading away from the Strap por-` tion in theSecond strand passing through the' from a first and second strand, saidfirst strand having a loopV and Sub-loop therein with a pair of legsleading away from the sub-loop, a Strap portion in the second strandwith a pair vof legs leading away there-from and crossing each other toform a loop, Said Strap portion residing between the legs leading awayfrom Vthe sub-loop in the first strand, one leg' leading away from thestrap: portion in the second strand passing through the.

loop `formed in the 'first strand, and the other leg leading awayfromtheStrap portion in the Second strand passing through the Sub-loop, theSaid one leg in the Second ,strand passing on the opposite side of thesaid other leg in the second strand, from the loop in the first strand.

7. A net formed from a series of strands knotted together at intervals,each knot being formed' from a first and Second strand, Said firststrand having a loop and sub-loop thereinwith a pair of legs leadingaway from the Sub-loop, a Strap portion in the second strand with a pairof legs leading away therefrom and crossing each other toV form a loop,Said Strap portion residing between the legs leading away from theSub-loop in the first strand, one leg leading away' from the Strapportion in the second strand passing through the loop formed in thefirst strand, and the other legv leading away from the strap portion inthe Second strand passing through the Sub-loop, the Said one leg in theSecond strand passing on the opposite Side of the said other leg in theSecond strand, the strands being made of nylon.

RUDOLPH SONNBERGER.

References Cited 'in the file of this patent UNITED STATES PATENTS

